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WA · Act

Work Health and Safety Act 2020

The Work Health and Safety Act 2020 (WA) is the primary work health and safety legislation in Western Australia. It imposes duties on persons conducting a business or undertaking (PCBUs), officers, workers, and others at...
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Version as at 28 May 2026 Compiled version

Current Topics 10

Approved codes of practice

Oct 2026
An approved code of practice is admissible in proceedings for an offence against the Act as evidence of whether a duty or obligation has bee...
Medium
2 citations

Further duties of businesses that manage plant or design, make, import, supply or install plant

Oct 2026
PCBUs that manage or control fixtures, fittings or plant, or design, manufacture, import, supply or install plant, substances or structures,...
Medium
1 citation

Industrial manslaughter offence

Jul 2026
A PCBU or senior officer whose negligent conduct causes the death of a worker commits industrial manslaughter — maximum penalty $10M (body c...
Critical
2 citations

Officer due diligence duty

Jul 2026
Officers of a PCBU must exercise due diligence to ensure the PCBU complies with its WHS duties.
High
1 citation

Penalty categories for WHS offences

Sep 2026
Three-tier penalty structure: Category 1 (reckless conduct) up to $3M body corporate; Category 2 (failure to comply with duty); Category 3 (...
High
1 citation

Primary duty of care — PCBU

Oct 2026
A PCBU must ensure, so far as is reasonably practicable, the health and safety of its workers and that others are not put at risk from its w...
High
2 citations

Principles that apply to duties and what is reasonably practicable

Oct 2026
Duties under the Act cannot be transferred, can be held by more than one person, and require risks to be eliminated or minimised so far as i...
Low
1 citation

Start of the work health and safety laws

Oct 2026
The Work Health and Safety Act 2020 and supporting regulations came into effect on 31 March 2022.
Low
1 citation

Who counts as a business, officer, worker and workplace

Oct 2026
A worker is anyone carrying out work in any capacity for a PCBU, and a workplace is any place where work is carried out for a business or un...
Low
1 citation

Work Health and Safety Regulations 2022 (WA) — subsidiary legislation

Sep 2026
The WHS Regulations 2022 prescribe detailed duties covering hazardous chemicals, plant, construction, mining, asbestos, and worker consultat...
High
2 citations

Recent updates

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28 May 2026 · Amended
31 Mar 2023 · Amended

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Source & trust

Citations tracked14
Topics tracked10
Every update cites a regulator, parliament, or legislation register.